hulbert



S. HULBERT.

Plow

No. 78,457; Patented June 2, 1868.

FIGZJ.

FIG: 2. v r/c.3. 7 FIG. 4.

I F/G. 5.

Z FIG. 6-

INVENTQRJ WI r/vtasss.

N. PETERS, FHOYOJJTHOGRAPHER, WASHINGTON. D C.

SAMUEL HULBERT, OF OGD'ENSBURG, NEW YORK.

Letters Patent No. 78,457, cZatecZJane 2, 1568.

IMPROVEMENT IN PLOUGHS.

'o'lpfitlgttlflt tenant in it iljtSt jtetttrs 332mm amt muting part atthe sane.

To ALL WHOM IT nnveonennn:

Be it known that I, SAMUEL HULBEnT, of the village of Ogdensburg, in thecounty of St. Lawrence, State of New York, have invented a new andimproved Mode of Fastening the Agricultural Plough together with outbolts by a dove-tail lock and key; and I hereby declare that thefollowing is a full and exact descriptionthcreoi", reference being hadto the accompanying drawings making a part of this specification, inwhich- Figure 1 represents the land-side, showing a cavity to receivethe flange of the mould-board at a.

Figure 2 represents a section of the land-side, showing at 6 the cavityand the flange which forms-the tenon of-the dove-tail. v i s Figure 3represents a section of the mould-board and its flange at the left, witha hook at the right forming the dove-tail,as shown a t'c.

Figure 4 represents the section of the land-side and the section of themould-hoard put together, showing a vacancy ready to receive the key at(Z. I

Figure 5 represents the lower portion of the land-side, where theplough-point goes on it, having a hole through which the hook of theplough-point passes, and a hook on the land-side, showing a vacancy forthe key at c.

Figure 6 represents the plough-point in a manner showing its hook atf.Figure 7 represents the land-side and plough-point put together, thehook passed through the hole in the land-side leaving a place for thekey at g. r Figure-8 represents the plough entire, with the brace-rodacross from the land-side -to the flat loop on the inside of themould-board, the brace-rod having screw-nuts, so that the plough may bemade wider or narrower at pleasure. This rod also holdsthe handles, asshown at it.

Figure 9 represents the working-side of the plough, the mould-hoard, andpoint, without any bolt-head's,

I having a uniform smooth surface, its surface being straight lineslongitudinal on the transverse straight lines,

,fornlingian angle of about fifty degrees throughout with thelongitudinal.

The same kind of dove-tail lock and key is used for the double-mouldplon'gltend single cultivator, only the standard has a slot-hole throughthe centre to receive the two flanges where the mould-hoardseometogether, and the cultivator sides are so constructed that they canbe used when the mould-boards are taken off, the same point, standardbeam, and handles answering for either. i

Figure 10 represents a section of the standard for thetlouhle-inouldplough, the slot-hole represented at Figure 11 representsthernould-hoard placed on the standard, their flanges through theslot-hole atj ready to receive the key at 7c is.

Figure 12 represents the inside of a rnonld-hoard with its flange at Z,its hooks at m m, it loops at 72, n.

Figure 13 represents one of theeultivatersides, so constructed as to goon the double mould-board plough,

when the mould-hoards are taken oil, and made so as to cut the weeds ina sliding manner at-o. They are used,

also, for digging potatoes.

I claim the improved manner of fastening the plough and cultivatorlIOgCtl lClQ-SOPtlltltClY and connectedly, I in manner and for thepurposes as herein described and constructed SAMUEL HULBERT. Witnesses:

FRANK R. J unsolv, ELIJAH WHITE.

